Nature’s Head Composting Toilet

The toilet is self-contained, urine diverting and the waterless operation allows for ease of use for many applications.

The Nature’s Head is lightweight, odorless and compact making it a perfect fit for homes, cabins, tiny houses, RV’s, workshops, boats and survival applications. The toilet with its stainless steel hardware, robust construction and user friendliness has been designed to withstand the harshest of conditions. Two agitator handle configurations are available. Both systems provide for bi-directional cranking. Spider handle reduces the overall width of the unit by 2 ¾”. Handles can be mounted on either side.

Natures Head is easy to fit requiring a flat base (normally ply wood , we recommend this is sealed with epoxy) that the unit hold down brackets can be fixed to. The unit is fitted over these two brackets and secured with thumb type screws, the vent pipe is then taken to the outside. A solar vent can be used, then there is no need for on board electricity but otherwise the small 12 volt fan needs to be connected.

When fitting in boats we recommend that when the craft is next dry docked the sea cocks for any old system are removed and the hull made good using epoxy and pads


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  • Proudly made in the USA.
  • Five Year Warranty
  • All stainless hardware.
  • Full size elongated seat for comfort.
  • Disassembles in seconds for emptying.
  • Composting handle can be mounted on either side.
  • Vent hose and fan may be mounted on either side.
  • Unit comes with everything for your installation but the external vent.
  • Molded in toilet seat for safety and ease of cleaning.
  • Completely self contained and portable.

Does it smell bad? 

No. Because you never mix the liquid wastes with the solid wastes it does not have the odours associated with sewage or holding tank systems. When working properly it will have a slight earthy smell.

When should I empty it? 

It is best to allow the solids to decompose before emptying your toilet. The longer you wait before emptying your toilet, the nicer the job will be. Many boaters will leave the solid wastes in the toilet over the winter and empty it in the spring. That may not be possible for some applications, but you will find that even in as little as one week much of the solid wastes have begun to decompose, and just the paper products are visible. It is best if you do not leave the liquid wastes in the tank for extended periods. While everyone is different, some urine will smell bad if allowed to sit for extended periods.

Where do I empty it? 

The proper place to empty the solids tank is in a composting bin where it can be used to fertilize ornamental plants. Boaters may empty theirs overboard if they are the proper distance offshore. Many campgrounds now have composting bins as composting is becoming more popular. The liquid tank can be emptied into a toilet or overboard if offshore.

How does it separate the liquids and the solids? 

The toilet has a gate or door that when closed directs the liquid waste into the front tank. When the door is open the solids pass through to the lower main tank. When seated on the toilet (male or female) the liquids naturally are aimed towards the front collection area and the solids are directed straight down into the main tank.

Why is the toilet seat moulded into the unit? 

Because we designed this toilet for the “mobile” market, this became a safety issue. I have spoken with boaters who have had a toilet seat break off in rough conditions. I have heard of other boaters lifting the seat and sitting on the base of the toilet to avoid this problem. (That can’t be comfortable). While this isn’t as likely with an RV, it would not be out of the question.

Can I use it standing up? 

Yes, although the recommended use is sitting down. Especially when underway in a moving vehicle or vessel.

Do I need to run the fan all of the time? 

While the unit can be operated without the fan it is best if it runs all of the time. This will prevent any musty odours and the fan helps with the composting process. If battery drain is a concern then you might consider attaching the unit to a solar vent instead of using the built in fan, or using a small solar panel to offset the battery drain.

What are the dimensions of the unit? 

The dimensions are: 20 inches tall, 17 3/4 inches front to rear, and 13 inches wide at the base. The toilet is 16 1/4 inches wide at the seat.

Will freezing temperatures damage the toilet? 

Other than emptying the urine bottle nothing needs to be done and it will not affect the toilet.

Does composting work in cold conditions? 

Composting works from 55 degrees and warmer. The warmer it is the faster it compost. When there is freezing temps the compost will be dormant until heat is introduced into the area.

Can the toilet be used in a basement? 

Yes it will work fine in a basement and any room or closet where a toilet is required.

Preventing fruit flies and gnats. 

Add 4 cups of Diatomaceous Earth to the compost section. This can be purchased from a swimming pool supply store, or from big box hardware such as Home Depot or Lowes.

The agitator handle turns with difficulty. What to do? 

If the compost gets dry, the handle may not turn easily. Adding used coffee grounds results in added moisture and keeps the compost loose so that it mixes better.

What kind of toilet paper must be used? 

Any kind of toilet paper will work, however single ply paper breaks down quicker. Many single ply papers are approved for septic tanks. 

How do we remove build up in the liquids bottle. 

Rinse the bottle, add vinegar and some pea gravel. Shake well and the build-up will break loose.

Black Bear Boating & Leisure will deliver any paid for goods in the quickest possible way, usual delivery is 2/3 days however were we are sending goods overseas (this means across any water) this period may be extended up to two weeks or longer at the company’s discretion.

The company has an ongoing belief that good customers expect and deserve a top class service.
In the UK, any problem reported to us on delivery will be dealt with in the following manner: